Let's call the number x. So four times the number minus five would look like
4x-5
Twice the number plus three would look like
2x+3
Now make the two equations equal
4x-5=2x+3
I'm going to subtract 2x from each side
2x-5=3
Now I'm going to add five to each side
2x=8
Now divide both sides by 2
x=4
To double check, just plug back into the original equations
4(4)-5=11
2(4)+3=11
They are equal, so the answer is x=4.
Answer:
Yes!
Step-by-step explanation:
first you need two points (x,y) (x,y). 
is the formula you would follow to get the slope. Say you have (2,4) (3,-7) You would plug it into the formula and get 
. This example you can simplify it into -11. hope that kinda helps.
Answer:
x=12
Step-by-step explanation:
14/21=16/(x+12)
cross multiply
14(x+12)=16(21)
14x+168=336
14x=336-168
14x=168
x=12 (so the side would be x+12=24)
You could also see that 14 is 2/3 of 21, so 16 has to be 2/3 of x+12. That means x+12 would have to equal 24. If you take the 12 away from 24, x=12.
Answer:
The percentage of the bags of the potato chips that are not cheddar-flavored is 25%. This is because there are 10 bags that are not cheddar-flavored and this divided by 40 bags, which is the total bags of the potato chips multiply by 100% gives 25%
Step-by-step explanation:
If there are 40 bags of potato chips and 30 are cheddar flavored, Then
40 - 30 = 10 bags are not cheddar flavored
Since the total bags is 40,
percentage potato chips that are not cheddar-flavored = 10/40 × 100%
= 25%
